Home / 74,642.72-103,138.04-59,659.00

Finding the Fourth Proportional to 74,642.72, 103,138.04 and 59,659.00

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Solution

The fourth proportional to 74,642.72, 103,138.04 and 59,659.00 is: 82,434.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,642.72 : 103,138.04 = 59,659.00 : x
  2. Step 2: Convert to fraction form
    74,642.72/103,138.04 = 59,659.00/x
  3. Step 3: Cross multiply
    74,642.72x = 103,138.04 × 59,659.00
  4. Step 4: Simplify right side
    74,642.72x = 6,153,112,219.66
  5. Step 5: Solve for x
    x = 6,153,112,219.66/74,642.72
  6. Step 6: Final answer
    x = 82,434.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.